﻿using System;

public abstract class People : IDisplayable
{
    #region Properties

    public string FirstName { get; set; }
    public string LastName { get; set; }
    public long SSN { get; private set; }   //or EGN

    #endregion

    #region Constructors

    public People(string firstName, string lastName,long ssn)
    {
        this.FirstName = firstName;
        this.LastName = lastName;
        this.SSN = ssn;
    }

    #endregion

    #region Methods

    public abstract void Display();

    #endregion
}

